Answer:
Recursive function with two parameters that return the number of uppercase letters in a String
public static int count(String str,int h)//Defining function
{
if(str.charAt(0)>='A' && str.charAt(0)<='Z')//Checking the characters from A to Z
{
h++; //incrementing the counter
if(str.length()>=2){
return count(str.substring(1),h);//recalling function
}
}
if(str.length()>=2){
return count(str.substring(1),h); //recalling function
}
return h;
}
This is the recursive function with the name count of return type integer,having parameters str of string type and h of integer type.In this we are checking the characters at a particular position from A to Z.
Recursive function with one parameter that return the number of uppercase letters in a String
public static int count(String str)//Defining function
{
if(str.charAt(0)>='A' && str.charAt(0)<='Z')//Checking the characters from A to Z
{
count++; //incrementing the counter
if(str.length()>=2){
return count(str.substring(1));//recalling function
}
}
if(str.length()>=2){
return count(str.substring(1)); //recalling function
}
return count;
}
This is the recursive function with the name count of return type integer,having parameters str of string type .In this we are checking the characters at a particular position from A to Z.
Java program that return the number of uppercase letters in a String
import java.util.*;
public class Myjava{
static int count =0;//Defining globally
public static int count(String str,int h)//Defining function
{
if(str.charAt(0)>='A' && str.charAt(0)<='Z')//Checking the characters from A to Z
{
h++;
//incrementing the counter
if(str.length()>=2){
return count(str.substring(1),h);//recalling function
}
}
if(str.length()>=2){
return count(str.substring(1),h);
//recalling function
}
return h;
}
public static void main(String[] args)//driver function
{
System.out.println("Enter a string");//taking input
Scanner scan = new Scanner(System.in);
String s = scan.nextLine();
int h =0;
System.out.println("Counting the Uppercase letters: "+count(s,h));
}
}
Output
Enter a string WolFIE
Counting the Uppercase letters: 4